Finding the Third Proportional to 633 and 978
Calculator
Solution
The third proportional to 633 and 978 is: 1,511.03
Step by Step Solution
- Step 1: Write the proportion equation
633 : 978 = 978 : x - Step 2: Convert to fraction form
633/978 = 978/x - Step 3: Cross multiply
633x = 978 × 978 - Step 4: Simplify right side
633x = 956,484 - Step 5: Solve for x
x = 956,484/633 - Step 6: Final answer
x = 1,511.03
Related Problems
Find third proportional to 316.50 and 489
Half scale
Find third proportional to 1,266 and 1,956
Double scale
Find third proportional to 635 and 981
Similar ratio
Find third proportional to 949.50 and 1,467
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.